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Red Hat Linux Advisory: httpd

May 28, 2003, 17:28 (0 Talkback[s])

Red Hat Security Advisory

Synopsis: Updated httpd packages fix Apache security vulnerabilities
Advisory ID: RHSA-2003:186-01
Issue date: 2003-05-28
Updated on: 2003-05-28
Product: Red Hat Linux
Keywords: Apache httpd auth remote
Cross references:  
CVE Names: CAN-2003-0189 CAN-2003-0245

1. Topic:

Updated httpd packages that fix two security issues are now available for Red Hat Linux 8.0 and 9.

2. Relevant releases/architectures:

Red Hat Linux 8.0 - i386
Red Hat Linux 9 - i386

3. Problem description:

The Apache HTTP server is a powerful, full-featured, efficient, and freely-available Web server.

A bug in Apache 2.0 through 2.0.45 allows remote attackers to cause a denial of service, and may allow execution of arbitrary code. This bug affects both Red Hat Linux 8.0 and 9. The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name CAN-2003-0245 to this issue.

A build system problem in Apache 2.0 through 2.0.45 allows remote attackers to cause a denial of access to authenticated content when a threaded server is used. This bug affects only Red Hat Linux 9 when the threaded server "httpd.worker" has been configured, which is not the default. The Common Vulnerabilities and Exposures project (cve.mitre.org/) has assigned the name CAN-2003-0189 to this issue.

All users of the Apache HTTP Web Server are advised to upgrade to the applicable errata packages, which contain back-ported fixes correcting these issues, and applied to Apache version 2.0.40.

After the errata packages are installed, restart the Web service by running the following command:

/sbin/service httpd restart

Red Hat would like to thank iDefense who initially discovered CAN-2003-0245 and John Hughes for CAN-2003-0189.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory only contains the desired RPMs.

Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command:


This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

5. Bug IDs fixed

(http://bugzilla.redhat.com/bugzilla for more info):

88575 - Byte Range implementation fix
89170 - fullstatus segfaults apachectl
89179 - mod_proxy (forward proxy) inserts empty line before header

6. RPMs required:

Red Hat Linux 8.0:



Red Hat Linux 9:



7. Verification:

MD5 sum Package Name
904aee1a576c1e0aa8db130f38ff4944 8.0/en/os/SRPMS/httpd-2.0.40-11.5.src.rpm
2f19f8a77ec3b3d176e2dca39b0c0afe 8.0/en/os/i386/httpd-2.0.40-11.5.i386.rpm
cb1e6c56201c66be08f0154160f6e853 8.0/en/os/i386/httpd-devel-2.0.40-11.5.i386.rpm
65953249119902e90b5064f9a5682622 8.0/en/os/i386/httpd-manual-2.0.40-11.5.i386.rpm
8e32d341bd26b8d31fbba3955c03fe41 8.0/en/os/i386/mod_ssl-2.0.40-11.5.i386.rpm
a0a8e23c41fd1ca6ddb1be41e00f3ed9 9/en/os/SRPMS/httpd-2.0.40-21.3.src.rpm
414838fb1cd03bfe0c528361c4d1efa2 9/en/os/i386/httpd-2.0.40-21.3.i386.rpm
36584099d7e1f4a560bd4ce2ada65f4e 9/en/os/i386/httpd-devel-2.0.40-21.3.i386.rpm
346e7032c5d1b89dd3545e9f5218577b 9/en/os/i386/httpd-manual-2.0.40-21.3.i386.rpm
b86192fe630b4797b0e176abe22e2cba 9/en/os/i386/mod_ssl-2.0.40-21.3.i386.rpm

These packages are GPG signed by Red Hat for security. Our key is available at http://www.redhat.com/solutions/security/news/publickey/

You can verify each package with the following command:

rpm --checksig -v <filename>

If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command:

md5sum <filename>

8. References:


9. Contact:

The Red Hat security contact is <security@redhat.com>. More contact details at http://www.redhat.com/solutions/security/news/contact/

Copyright 2003 Red Hat, Inc.